#!/usr/bin/env python
#coding=utf-8

class Athlete:
	"""
	class for Athlete
	"""
	def __init__(self, value=0):
		self.thing = value

	#增加一个新的方法
	def how_big(self):
		return len(self.thing)

def test():
	d = Athlete('holy grail')
	print d.how_big()

if __name__ == '__main__':
	test()